16-30 EB 8331-4 EN
Annex A (conguration instructions)
Several important data points from the Modbus data point list are listed below. The entire da-
ta point list is available on request.
Data are saved in a non-volatile EEPROM. This type of memory has a limited life of at least
100,000 write operations per memory address. It is almost impossible to exceed this limita-
tion if congurations and data are only changed manually using TROVIS-VIEW or at the de-
vice. If parameters are changed automatically (e.g. by Modbus communication), make sure
to observe the maximum number of write operations and take appropriate action to prevent
that parameters are written too frequently.
HR Designation Access
Transmission range Reading range
Start End Start End
Actuator version
1 Device type (3374 or 3375) R 3374 3375 3374 3375
2 Reserved
3 Revision R 300 9999 3.00 99.99
4 Part one of serial number (top four digits) R 0 9999 0 9999
5 Part two of serial number (bottom four digits) R 0 9999 0 9999
6 Firmware version R 100 9999 1.00 99.99
7 Releasedrmwareversion R 0 1 0 1
8 Modbus station address R 0 255 0 255
9 Gearversion R 0 2 0 2
Control
10 Application R 0 4 0 4
11 Direction of action R 0 1 0 1
Inputs (operating values) for positioner application
12 Positioningvaluein% R/W 0 1000 0 100.0
13 Input signal in mA or in V R 0 2400 0 24.0
14 Unit of input signal R 0 1 0 1
Inputs (operating values) for PID controller application
15 Process variable in unit (PID controller) R –10000 10000 –1000 1000
16 Set point in unit (PID controller) R –10000 10000 –1000 1000
17 Unit (PID controller) R 0 3 0 3
Note